Base station apparatus and radio communication method with path diversity

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EP 1 001 557 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	14.05.2003 Bulletin 2003/20

(43)	Date of publication A2:
	17.05.2000 Bulletin 2000/20

(21)	Application number: 99122263.9

(22)	Date of filing: 08.11.1999

(51)	International Patent Classification (IPC)⁷: H04B 7/04, H04B 7/005

(84)	Designated Contracting States:
	AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
	Designated Extension States:
	AL LT LV MK RO SI

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Priority:

10.11.1998 JP 31935498

(71)	Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
	Kadoma-shi, Osaka 571-8501 (JP)

(72)	Inventors:
	Miya, Kazuyuki Kawasaki-shi, Kanagawa 215-0021 (JP) Hiramatsu, Katsuhiko Yokosuka-shi, Kanagawa 239-0831 (JP) Takahashi, Hideyuki Yokosuka-shi, Kanagawa 239-0841 (JP)

(74)	Representative: Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
	Maximilianstrasse 58 80538 München 80538 München (DE)

(54)	Base station apparatus and radio communication method with path diversity

(57) When switching to a path whose directivity changes greatly or a path with a widely different propagation delay, transmission is performed for both directivities for a certain period of time. Then, transmission is performed for one directivity. When the switching of transmission directivities is controlled, this allows correct reception of signals and prevents instantaneous interruption due to loss of synchronism even if transmission is performed by switching to a path with a widely different propagation delay.

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